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© 2014 Arnold Magnetic Technologies Corporation
Since the beginning of rare earth magnet production in the early 1970's, Recoma® has been a synonym for high quality SmCo materials. The combination of excellent magnetic properties with superior temperature and corrosion stability has made these materials the standard for applications in demanding environments. Offering the best magnetic properties at elevated temperatures, SmCo magnets are widely used in the chemical and aerospace industries, as well as in many automotive "under the hood" applications. Owing to their superior corrosion stability, SmCo magnets can in most cases be used without protective coating. And since they show little or no surface degradation during machining, SmCo are the ideal materials for rare earth micromagnets. There are two families of SmCo materials. The Sm2Co17 magnets show the highest magnetic performance at elevated temperatures. Magnets based on SmCo5 offer easy magnetizing in moderate fields and the best corrosion resistance of all rare earth magnets. The most common Recoma materials are presented in detail on the following pages. In addition to these main grades, materials with rather unique properties are available: Materials where the temperature coefficient of magnetization can be adjusted to a preferred value (including zero), or materials for highest operating temperatures up to 500°C and beyond. These materials are usually customized to the requirements of the individual customer. Please contact us for a solution to your application needs.
g/cm3 kA/m %/K ˚C Product Designator(1) typ min typ min typ min typ min typ min typ min typ min typ min typ min typ
Recoma 18 (135/200) A 143 135 18.0 17.0 0.87 0.83 8.7 8.3 650 600 8.2 7.5 2400 2000 30 25 8.4 >2000 -0.045 250
Recoma 20 (140/200) A 160 140 20.1 17.6 0.90 0.85 9.0 8.5 700 640 8.8 8.0 2400 2000 30 25 8.4 >2000 -0.045 250
Recoma 22 (155/200) T 175 155 22.0 19.5 0.94 0.90 9.4 9.0 730 680 9.2 8.6 2400 2000 30 25 8.4 >2000 -0.045 250
Recoma 25 (180/200) T 200 180 25.1 22.6 1.00 0.97 10.0 9.7 775 720 9.7 9.1 2400 2000 30 25 8.4 >2000 -0.050 250
Recoma 24HE (175/150) A 195 175 24.5 22.0 1.02 0.97 10.2 9.7 765 715 9.6 9.0 2000 1500 25 19 8.4 >4000 -0.035 350
Recoma 26 (185/120) A 205 185 25.8 23.2 1.04 1.00 10.4 10.0 765 680 9.6 8.6 2000 1200 25 15 8.3 >4000 -0.035 350
Recoma 26HE (195/150) T 215 195 27.0 24.5 1.07 1.03 10.7 10.3 800 755 10.1 9.5 2000 1500 25 19 8.4 >4000 -0.035 350
Recoma 28 (195/120) T 225 195 28.3 24.5 1.10 1.04 11.0 10.4 800 700 10.1 8.8 2000 1200 25 15 8.3 >4000 -0.035 350
Recoma 28HE (215/150) T 225 215 28.3 27.0 1.10 1.06 11.0 10.6 805 775 10.1 9.7 2000 1500 25 19 8.4 >4000 -0.035 350
Recoma 30 (215/104) T 230 215 28.9 27.0 1.12 1.09 11.2 10.9 820 700 10.3 8.8 1600 1040 20 13 8.3 >4000 -0.035 250
Recoma 30HE (215/150) T 230 215 28.9 27.0 1.12 1.09 11.2 10.9 830 795 10.4 10.0 2000 1500 25 19 8.3 >4000 -0.035 350
Recoma 30S (225/175) T 235 225 29.5 28.3 1.12 1.09 11.2 10.9 845 820 10.6 10.3 2150 1750 27 22 8.3 >4000 -0.035 350
Recoma 32 (225/104) T 240 225 30.2 28.3 1.15 1.12 11.5 11.2 835 640 10.5 8.0 1350 1040 17 13 8.3 >4000 -0.035 250
Recoma 32S (223/159) T 245 223 30.8 28.0 1.15 1.12 11.5 11.2 850 780 10.7 9.8 1790 1590 22.5 20 8.3 >4000 -0.035 250
Recoma 33E (238/175) T 251 238 31.5 29.9 1.16 1.14 11.6 11.4 865 845 10.9 10.6 2100 1750 26.4 22 8.3 >4000 -0.035 350
Recoma 35E (255/171) T 265 255 33.3 32.0 1.19 1.17 11.9 11.7 880 860 11.1 10.8 1800 1710 23 21 8.3 >4000 -0.035 300
1) A = Axial; T = Transverse or Isostatic 2) Magnetizing Field - Values are dependent on size, shape and characteristics of the magnetizing pulse3) Maximum Operating Temperature - In the presence of strong demagnetizing fields or if the magnets operate on a low loadline, the maximum temperature may be considerably lower.
(BH)max Br HcbkOe kA/m kOekA/mkJ/m3 MGOe T kG
Max
imum
Ope
ratin
gTe
mpe
ratu
re (3
)
Den
sity
Mag
netiz
ing
Fiel
d (2
)
Tem
pera
ture
C
oeffi
cien
tof
Br (
20-1
50˚C
)
Intrinsic CoercivityHcj
High Temperature and Temperature Stabilized grades are also available. Please consult your Arnold representative to learn more about these products.
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
RECOMA®
Summary of main grades of SmCo5 and Sm2Co17
Rev. 160205a © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 7 14
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 8,300 8,700 psi
Tesla 0.83 0.87 MPa
Oersteds 7,540 8,170 psi
kA/m 600 650 MPa
Oersteds 25,000 30,000 Young's Modulus GPa
kA/m 2,000 2,400 Density g/cm3
MGOe 17 18 Hardness, Vickers Hv
kJ/m3 135 143 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
net
ic P
rop
erti
es
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 18
-0.19
55
370
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
-0.045
HcJ, Intrinsic Coercivity
725
11
250
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.4
600
Compressive Strength145,000
1000
140
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C
150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma 18
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered SmCo5
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 7 14
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 8,500 9,000 psi
Tesla 0.85 0.90 MPa
Oersteds 8,040 8,800 psi
kA/m 640 700 MPa
Oersteds 25,000 30,000 Young's Modulus GPa
kA/m 2,000 2,400 Density g/cm3
MGOe 18 20 Hardness, Vickers Hv
kJ/m3 140 160 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
net
ic P
rop
erti
es
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 20
-0.19
55
370
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
-0.045
HcJ, Intrinsic Coercivity
725
11
250
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.4
600
Compressive Strength145,000
1000
140
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C
150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma 20
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered SmCo5
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 7 14
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 9,000 9,400 psi
Tesla 0.90 0.94 MPa
Oersteds 8,550 9,170 psi
kA/m 680 730 MPa
Oersteds 25,000 30,000 Young's Modulus GPa
kA/m 2,000 2,400 Density g/cm3
MGOe 20 22 Hardness, Vickers Hv
kJ/m3 155 175 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
net
ic P
rop
erti
es
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 22
-0.25
55
370
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
-0.045
HcJ, Intrinsic Coercivity
725
11
250
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.4
600
Compressive Strength145,000
1000
140
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C
150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma 22
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered SmCo5
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 7 15
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 9,700 10,000 psi
Tesla 0.97 1.00 MPa
Oersteds 9,050 9,740 psi
kA/m 720 775 MPa
Oersteds 25,000 30,000 Young's Modulus GPa
kA/m 2,000 2,400 Density g/cm3
MGOe 23 25 Hardness, Vickers Hv
kJ/m3 180 200 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
net
ic P
rop
erti
es
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 25
-0.24
55
370
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
-0.05
HcJ, Intrinsic Coercivity
725
11
250
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.4
560
Compressive Strength145,000
1000
140
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C
150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma 25
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered SmCo5
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 9,700 10,200 psi
Tesla 0.97 1.02 MPa
Oersteds 8,980 9,610 psi
kA/m 715 765 MPa
Oersteds 19,000 25,000 Young's Modulus GPa
kA/m 1,500 2,000 Density g/cm3
MGOe 22 25 Hardness, Vickers Hv
kJ/m3 175 195 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.4
BHmax, Maximum Energy Product600
90
Recoma 24HE
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Th
erm
al P
rop
ert
ies -0.035
-0.212
825
350
Ma
gn
eti
c P
rop
ert
ies
Br, Residual Induction
10
350
HcB, Coercivity
Oth
er
Pro
pe
rtie
s
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17
Recoma 24HE
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 131025© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,000 10,400 psi
Tesla 1.00 1.04 MPa
Oersteds 8,550 9,610 psi
kA/m 680 765 MPa
Oersteds 15,000 25,000 Young's Modulus GPa
kA/m 1,200 2,000 Density g/cm3
MGOe 23 26 Hardness, Vickers Hv
kJ/m3 185 205 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.3
BHmax, Maximum Energy Product600
90
Recoma 26
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Th
erm
al P
rop
ert
ies -0.035
-0.247
825
350
Ma
gn
eti
c P
rop
ert
ies
Br, Residual Induction
10
350
HcB, Coercivity
Oth
er
Pro
pe
rtie
s
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17
Recoma 26
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 131025© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,300 10,700 psi
Tesla 1.03 1.07 MPa
Oersteds 9,490 10,050 psi
kA/m 755 800 MPa
Oersteds 19,000 25,000 Young's Modulus GPa
kA/m 1,500 2,000 Density g/cm3
MGOe 25 27 Hardness, Vickers Hv
kJ/m3 195 215 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.4
BHmax, Maximum Energy Product600
90
Recoma 26HE
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Th
erm
al P
rop
ert
ies -0.035
-0.24
825
350
Ma
gn
eti
c P
rop
ert
ies
Br, Residual Induction
10
350
HcB, Coercivity
Oth
er
Pro
pe
rtie
s
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17
Recoma 26HE
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 131025© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,400 11,000 psi
Tesla 1.04 1.10 MPa
Oersteds 8,800 10,050 psi
kA/m 700 800 MPa
Oersteds 15,000 25,000 Young's Modulus GPa
kA/m 1,200 2,000 Density g/cm3
MGOe 25 28 Hardness, Vickers Hv
kJ/m3 195 225 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.3
BHmax, Maximum Energy Product600
90
Recoma 28
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Th
erm
al P
rop
ert
ies -0.035
-0.24
825
350
Ma
gn
eti
c P
rop
ert
ies
Br, Residual Induction
10
350
HcB, Coercivity
Oth
er
Pro
pe
rtie
s
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17
Recoma 28
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 131025© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,600 11,000 psi
Tesla 1.06 1.10 MPa
Oersteds 9,740 10,120 psi
kA/m 775 805 MPa
Oersteds 19,000 25,000 Young's Modulus GPa
kA/m 1,500 2,000 Density g/cm3
MGOe 27 28 Hardness, Vickers Hv
kJ/m3 215 225 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.4
BHmax, Maximum Energy Product600
90
Recoma 28HE
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Th
erm
al P
rop
ert
ies -0.035
-0.24
825
350
Ma
gn
eti
c P
rop
ert
ies
Br, Residual Induction
10
350
HcB, Coercivity
Oth
er
Pro
pe
rtie
s
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17
Recoma 28HE
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 131025© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,900 11,200 psi
Tesla 1.09 1.12 MPa
Oersteds 8,800 10,300 psi
kA/m 700 820 MPa
Oersteds 13,000 20,000 Young's Modulus GPa
kA/m 1,040 1,600 Density g/cm3
MGOe 27 29 Hardness, Vickers Hv
kJ/m3 215 230 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
net
ic P
rop
erti
es
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 30
-0.25
90
350
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
-0.035
HcJ, Intrinsic Coercivity
825
10
250
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.3
600
Compressive Strength116,000
800
140
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C
150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma 30
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered Sm2Co17
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ∆L/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,900 11,200 psi
Tesla 1.09 1.12 MPa
Oersteds 9,990 10,430 psi
kA/m 795 830 MPa
Oersteds 19,000 25,000 Young's Modulus GPa
kA/m 1,500 2,000 Density g/cm3
MGOe 27.0 28.9 Hardness, Vickers Hv
kJ/m3 215 230 Electrical Resistivity, • cmNotes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
netic
Pro
pert
ies Br, Residual Induction
10
0
HcB, Coercivity
Oth
erPr
oper
ties
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
Recoma 30HE
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Ther
mal
Pro
pert
ies -0.035
-0.25
825
350
Compressive Strength116,000
800
140
8.3
BHmax, Maximum Energy Product600
90
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Pola
rizat
ion
J
Flu
x D
ensi
ty B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17Recoma 30HE
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 140523a© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 10,900 11,200 psi
Tesla 1.09 1.12 MPa
Oersteds 10,300 10,620 psi
kA/m 820 845 MPa
Oersteds 22,000 27,000 Young's Modulus GPa
kA/m 1,750 2,150 Density g/cm3
MGOe 28 30 Hardness, Vickers Hv
kJ/m3 225 235 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.3
BHmax, Maximum Energy Product600
90
Recoma 30S
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Th
erm
al P
rop
ert
ies -0.035
-0.25
825
350
Ma
gn
eti
c P
rop
ert
ies
Br, Residual Induction
10
350
HcB, Coercivity
Oth
er
Pro
pe
rtie
s
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C
100°C
150°C
200°C
250°C
300°C
350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17
Recoma 30S
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 131025© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 11,200 11,500 psi
Tesla 1.12 1.15 MPa
Oersteds 8,040 10,490 psi
kA/m 640 835 MPa
Oersteds 13,000 17,000 Young's Modulus GPa
kA/m 1,040 1,350 Density g/cm3
MGOe 28 30 Hardness, Vickers Hv
kJ/m3 225 240 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
net
ic P
rop
erti
es
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 32
-0.25
90
350
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
-0.035
HcJ, Intrinsic Coercivity
825
10
250
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.3
600
Compressive Strength116,000
800
140
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C
150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma 32
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered Sm2Co17
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ∆L/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 11,200 11,500 psi
Tesla 1.12 1.15 MPa
Oersteds 9,800 10,680 psi
kA/m 780 850 MPa
Oersteds 20,000 22,500 Young's Modulus GPa
kA/m 1,590 1,790 Density g/cm3
MGOe 28 31 Hardness, Vickers Hv
kJ/m3 223 245 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 200 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
BHmax, Maximum Energy Product
Oth
erPr
oper
ties
17,400
120
8.3
600
Compressive Strength116,000
800
140
-0.035
HcJ, Intrinsic Coercivity
825
10
250
Mag
netic
Pro
pert
ies
Br, Residual Induction
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Recoma 32S
-0.25
90
350
Ther
mal
Pro
pert
ies
Flexural Strength
HcB, Coercivity
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Pola
rizat
ion
J
Flu
x D
ensi
ty B
Tesla
kA/m
Recoma 32S
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5Sintered Sm2Co17
Rev. 140403 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ∆L/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 11,400 11,600 psi
Tesla 1.14 1.16 MPa
Oersteds 10,620 10,870 psi
kA/m 845 865 MPa
Oersteds 22,000 26,400 Young's Modulus GPa
kA/m 1,750 2,100 Density g/cm3
MGOe 30 32 Hardness, Vickers Hv
kJ/m3 238 251 Electrical Resistivity, • cmNotes: (1) Coefficients measured between 20 and 200 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Compressive Strength116,000
800
140
8.3
BHmax, Maximum Energy Product600
90
Recoma 33E
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
Ther
mal
Pro
pert
ies -0.035
-0.25
825
350
Mag
netic
Pro
pert
ies Br, Residual Induction
10
350
HcB, Coercivity
Oth
erPr
oper
ties
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
20°C100°C
150°C200°C
250°C
300°C350°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Pola
rizat
ion
J
Flu
x D
ensi
ty B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17Recoma 33E
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 140403a© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ∆L/L per ºCx10-6 11 13
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 11,700 11,900 psi
Tesla 1.170 1.190 MPa
Oersteds 10,810 11,060 psi
kA/m 860 880 MPa
Oersteds 21,000 23,000 Young's Modulus GPa
kA/m 1,710 1,800 Density Mg/m3
MGOe 32.0 33.3 Hardness, Vickers Hv
kJ/m3 255 265 Electrical Resistivity, • cmNotes: (1) Coefficients measured between 20 and 200 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
Mag
netic
Pro
pert
ies Br, Residual Induction
10
350
HcB, Coercivity
Oth
erPr
oper
ties
Flexural Strength17,400
HcJ, Intrinsic Coercivity
120
Ther
mal
Pro
pert
ies -0.035
-0.25
820
300
BHmax, Maximum Energy Product600
90
Recoma 35E
Compressive Strength116,000
800
140
8.3
These are also referred to as Rare Earth or SmCo magnets. The Recoma family of materials offer a combination of high magnetic output and excellent temperature stability. Please contact Arnold for additional grade information, application assistance and recommendations for protective coatings. Assemblies using these magnets can also be provided.
20°C100°C
150°C200°C
250°C
300°C350°C
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Pola
rizat
ion
J
Flu
x D
ensi
ty B
Tesla
kA/m
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered Sm2Co17Recoma 35E
μoH-B
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
Rev. 160204a© Arnold Magnetic Technologies Corp. E-mail: [email protected]
www.arnoldmagnetics.com
Recoma® Sintered Samarium Cobalt Magnets Characteristic Units C // C
Reversible Temperature Coefficients (1)
of Induction, α(Br) %/ºC
of Coercivity, α(Hcj) %/ºC
Coefficient of Thermal Expansion (2) ΔL/L per ºCx10-6 7 14
Thermal Conductivity W/(m•K)
Specific Heat (3) J/(kg•K)
Max. Recommended Use Temperature ºC
Characteristic Units min. nominal Curie Temperature, Tc ºC
Gauss 7,300 7,700 psi
Tesla 0.73 0.77 MPa
Oersteds 6,850 7,540 psi
kA/m 545 600 MPa
Oersteds 25,000 30,000 Young's Modulus GPa
kA/m 2,000 2,400 Density g/cm3
MGOe 13 15 Hardness, Vickers Hv
kJ/m3 100 115 Electrical Resistivity, • cm
Notes: (1) Coefficients measured between 20 and 150 ºC
(2) Between 20 and 200 ºC (3) Between 20 and 150 ºC
Notes The material data and demagnetization curves shown above represent typical properties that may vary due to product shape and size.Demagnetization curves show nominal Br and Hcj.Magnets can be supplied thermally stabilized or magnetically calibrated to customer specifications.Additional grades are available. Please contact the factory for information.
BHmax, Maximum Energy Product
Oth
erP
rop
erti
es
17,400
120
8.4
600
Compressive Strength145,000
1000
140
-0.02
HcJ, Intrinsic Coercivity
725
11
250
Mag
net
ic P
rop
erti
es
Br, Residual Induction
The family of Recoma STAB magnets offer a combination of high magnetic output, excellent temperature stability. Grade STAB 02 is one of many in this family of temperature stabilized materials. STAB grades exhibit very low reversible temperature coefficients of induction suitable for such applications as TWTs, undulators and wigglers. Please contact Arnold for additional grade and application information.
Recoma STAB 02
-0.19
55
370
Th
erm
al P
rop
erti
es
Flexural Strength
HcB, Coercivity
Dimensions and shape of the magnet, in combination with required manufacturing processes, may cause the magnetic and physical characteristics to vary from typical values. Therefore, all data presented in this document are for general reference only and should not be relied upon to represent standard characteristics, nor are they guaranteed upon use. Arnold Magnetic Technologies reserves the right to change information in this document, including magnet performance standards, specifications, and characteristics without notice.
20°C
100°C150°C
200°C
250°C
0
0.2
0.4
0.6
0.8
1
1.2
-1600 -1400 -1200 -1000 -800 -600 -400 -200 0
Po
lari
zati
on
J
F
lux
Den
sity
B
Tesla
kA/m
Recoma STAB 02
321.510.75
0.5
0.3
0.1
Demagnetizing Force, H
Demagnetization Curves
kOe-20 -15 -10 -5 0
0
2
4
6
8
10
12
kG-BμoH
1 kA/m = 12.566 Oe 1 kOe = 79.577 kA/m
5
Sintered SmCo5
Rev. 131025 © Arnold Magnetic Technologies Corp.E-mail: [email protected]
www.arnoldmagnetics.com